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    • 9. 发明专利
    • METHOD FOR MANUFACTURING Cr-CONTAINING BAR STEEL MATERIAL
    • 含Cr含量钢材的方法
    • JP2010201460A
    • 2010-09-16
    • JP2009049413
    • 2009-03-03
    • Kobe Steel Ltd株式会社神戸製鋼所
    • TAKEDA MIKAKONAKAKUBO SHOHEIONISHI TAKASHITAHIRA TOMOHIDE
    • B21B45/00B21B3/00B21B45/04C22C38/00C22C38/18C22C38/22
    • PROBLEM TO BE SOLVED: To manufacture Cr-containing bar steel capable of improving scale peelability and having excellent surface property even when the steel contains Cr exerting adverse effect on the scale peelability. SOLUTION: In a method for manufacturing Cr-containing bar steel containing 0.10-2.0% Cr in which a steel slab containing 0.10-2.0% Cr is taken out from a heating furnace, and the steel slab is subjected to descaling, and hot-rolled, (a) the steel slab is heated in the heating furnace for ≥15 minutes in the temperature range in which the surface temperature of the steel slab is ≥800°C and ≤1,150°C, and then, the steel slab having its surface temperature (the extraction temperature) in the temperature range is taken out of the heating furnace, and (b) immediately, in the atmosphere of O2 concentration of ≥10 vol.%, (b-1) the steel slab is rapidly heated at the temperature-rising rate of ≥5 °C/sec till the surface temperature of the steel slab reaches the temperature (reaching temperature) within the range of ≥1,200°C and ≤1,350°C, (b-2) the steel slab is held at the reaching temperature for ≥0.1 second and ≤60 seconds, and (c) the steel slab is subjected to the descaling. COPYRIGHT: (C)2010,JPO&INPIT
    • 待解决的问题:即使钢含有Cr对鳞片剥离性产生不利影响,也可制造能够提高鳞片剥离性并具有优异表面性能的含Cr棒钢。 解决方案:在含有0.10-2.0%Cr的含铬钢筋的制造方法中,从加热炉取出含有0.10〜2.0%的Cr的钢坯,对钢坯进行除锈, (a)将钢坯在钢坯的表面温度≥800℃,≤1,150℃的温度范围内,在加热炉中加热≥15分钟,然后将钢坯 将其温度范围内的表面温度(萃取温度)从加热炉中取出,(b)在O2浓度≥10体积%(b-1)的气氛中,钢板迅速 以≥5℃/ sec的升温速度加热,直到钢板的表面温度达到≥1,200℃和≤1.350℃范围内的温度(达到温度),(b-2)钢 板坯保持在≥0.1秒和≤60秒的到达温度,(c)钢板受到 除垢。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Copper for wire and method of manufacturing the same
    • 铜线及其制造方法
    • JP2010046710A
    • 2010-03-04
    • JP2008215708
    • 2008-08-25
    • Sumitomo Electric Ind Ltd住友電気工業株式会社
    • KOBAYASHI NORIYUKINANJO KAZUHIROUTSUNOMIYA KIYOTAKANAKAMOTO MINORU
    • B21B1/16B21B27/10B21B45/04
    • PROBLEM TO BE SOLVED: To provide copper for wires in which coarse particles of oxidized copper are few in the vicinity of the surface and the generation of the defects such as omission and cracks on the surface of a copper wire are reduced, and to provide a method of manufacturing the same. SOLUTION: The copper for the wires is manufactured by continuously rolling a copper ingot and, when observing a cross section of optional three places, the particles of the oxidized copper, having the maximum diameter of ≥10 μm, being present in the region of within 100 μm from the surface, are ≤15 pieces on an average. In the method of manufacturing the copper for wires, the copper ingot is continuously rolled and rolling roll stands are arranged in multistage from the upstream side where the copper ingot is supplied and, at at least one stand, rolling is performed after the surface temperature of the roll in the biting part of the rolling roll is lowered to ≤60°C. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供铜在表面附近的氧化铜的粗颗粒很少,并且铜线表面的缺陷等缺陷和裂纹的产生减少,并且 以提供其制造方法。

      解决方案:通过连续轧制铜锭制造电线用铜,当观察任意三个位置的截面时,最大直径≥10μm的氧化铜颗粒存在于 距离表面100μm以内的区域平均为≤15个。 在制造铜线的方法中,连续轧制铜锭,轧制辊架从供给铜锭的上游侧多级配置,在至少一个支架的表面温度 轧辊的咬入部的辊降低到≤60℃。 版权所有(C)2010,JPO&INPIT